According to THIS ARTICLE in Education News: The total seven year cost for CC would be $15,800,000,000 for the United States. Of that $15.8 billion, the federal government will pay a total of $5.4 billion (in grants). That leaves the states to pay $10.4 billion.
Table one estimates how much it will cost each state to implement CC.
Nevada - The article estimates CC will cost NV $151,000,000.
This estimate seems very low because:
Clark County School District's Kirsten Searer has said they will spend $8 Million per year just to train teachers in CC
Washoe County School District's Superintendent, Pedro Martinez said WCSD will spend $1.7 Million for seven years just to train teachers in CC.
So it appears the state of NV will likely spend about $100 Million over seven years just to train teachers in CC.